Web server plug-in policy for WebSphere Application Server
Problem(Abstract)
It is possible to configure your web server plug-in to route requests to WebSphere® Application Server V6.0, V6.1, V7.0 and V8.0 releases. This technote provides steps on how to verify what V6.0, V6.1, V7.0 and V8.0 plug-in versions are installed on local or remote web servers, and how to determine if the installation complies with supported configurations.Resolving the problem
| Supported web server plug-in and Application Server process combinations |
| Application Server V8.0 | Application Server V7.0 | Application Server V6.1 | Application Server V6.0 | |
| Web server plug-in V8.0 ** | Supported | *Supported | *Supported | *Supported |
| Web server plug-in V7.0 ** | Supported | *Supported | *Supported | |
| Web server plug-in V6.1 | Supported | *Supported | ||
| Web server plug-in V6.0 | Supported |
*Backward compatibility: V6.1.0.23, 6.0.2.35, 7.0.0.3 plug-in includes APAR PK71492 ($WSFO header). V8.0.0.0 base plug-in also includes $WSFO. If using these plug-in fix pack levels or V8.0.0.0 base plug-in, the Application Server must be at the same fix pack level or higher to support the plug-in $WSFO header functionality. In addition, 7.0.0.13 or higher is recommended over 7.0.0.3 for the reasons indicated in ** below.
**The pluginMerge tool is provided in fix pack V7.0.0.13 for the z/OS and distributed platforms, and in fix pack V7.0.0.17 for the IBM i platform. Version V7.0.0.17, the name of this tool has changed to pluginCfgMerge. The pluginCfgMerge tool is also provided in V8.0.0.0. This tool must be used when merging plugin-cfg.xml files from earlier WebSphere Application Server V6.1 and V6.0 releases when using Web Server plug-in V7 or V8 binaries.
Note: When using the merge tool, the plug-in configuration file must be generated on the same level of WebSphere as the Web server plug-in release. The plug-in configuration can then be merged with older plug-in configuration files, but the first file listed when running the merge tool must be the most current release's configuration file.
Documentation:
V8 - pluginCfgMerge
V7 - pluginMerge and pluginCfgMerge
V6.1, V6.0 - manually merging plug-in files from multiple nodes
Notes:
- The WebSphere Application Server plug-in module is installed on the
supported web server that meets minimum software prerequisites.
- The web server is installed on a server that meets minimum hardware and
software prerequisites.
- The minimum Global Security Kit (GSKIT) level that is required by the
WebSphere Application Server plug-in for SSL communication with WebSphere
Application Server is installed on a web server.
- IBM strongly recommends that you use the latest WebSphere Application Server component cumulative plug-in fix pack for the corresponding WebSphere Application Server release. For example, if you are running WebSphere Application Server V7.0x, IBM recommends using the latest 7.0.0.x plug-in fix pack whenever possible.
- To verify WebSphere Application Server plug-in versions shipped in WebSphere Application Server fix packs, see Verifying the IBM HTTP Server Plug-in build version shipped with IBM WebSphere Application Server fix packs.
| Support restrictions |
- V6.0 plug-in with V6.0 Application Server:
The plug-in must be at the same or higher level than the respective Application
Server. For example, a V6.0.0.1 or higher plug-in to a V6.0.0.1 Application
Server. (Note:V6.0 is officially out of support as of 30 Sep 2010
- Valid Extended Support Contract must be in place to maintain support of
V6.0)
- V6.1 plug-in with V6.0 Application Server:
You are entitled to support for this configuration if you purchased support for
V6.1 and V6.0. (Note:V6.0 is officially out of support as of 30 Sep 2010
- Valid Extended Support Contract must be in place to maintain support of
V6.0)
- V6.1 plug-in with V6.1 Application Server: The plug-in must be at the
same or higher level than the respective Application Server. For example, a
V6.1.0.2 or higher plug-in to a V6.1.0.2 Application Server.
- V7.0 plug-in with V7.0 Application Server: The plug-in must be at the
same or higher level than the respective Application Server. For example, a
V7.0.0.3 or higher plug-in to a V7.0.0.3 Application Server.
- V7.0 plug-in with V6.1 Application Server: You are entitled to
support for this configuration if you purchased support for V7.0 and
V6.1.
- V7.0 plug-in with V6.0 Application Server: You are entitled to support for this configuration if you purchased support for V7.0 and V6.0. (Note:V6.0 is officially out of support as of 30 Sep 2010 - Valid Extended Support Contract must be in place to maintain support of V6.0)
- V8.0 plug-in with V8.0 Application Server: The plug-in must be at the
same or higher level than the respective Application Server. For example, a
V8.0.0.1 or higher plug-in to a V8.0.0.1 Application Server.
- V8.0 plug-in with V7.0 Application Server: You are entitled to
support for this configuration if you purchased support for V8.0 and
V7.0.
- V8.0 plug-in with V6.1 Application Server: You are entitled to support for this configuration if you purchased support for V8.0 and V6.1.
- V8.0 plug-in with V6.0 Application Server:
You are entitled to support for this configuration if you purchased support for
V8.0 and V6.0. (Note:V6.0 is officially out of support as of 30 Sep 2010
- Valid Extended Support Contract must be in place to maintain support of
V6.0)
| Upgrade recommendations |
Review minimum hardware and software prerequisites for the web server and WebSphere Application Server; refer to the Detailed system requirements for WebSphere Application Server.
| Downloading upgrades |
Download the latest WebSphere Application Server component cumulative plug-in fixes from Recommended fixes for WebSphere Application Server.
| Supported GSKit levels in WebSphere Application Server plug-ins |
The GSKIT required by the WebSphere Application Server plug-in is used for SSL encryption between the plug-in (web server) and WebSphere Application Server. It does not automatically mean that the same GSKIT version is used for SSL encryption for the traffic between the web server and the client (such as a browser). These WebSphere Application Server/GSKIT combinations are required by WebSphere Application Server plug-ins:
WebSphere Application Server V6.0 plug-ins
GSKIT 7 is used for all web server plug-ins with the following exceptions:
- Solaris
- IPlanet/Sun One web server plug-in uses GSKIT 4
WebSphere Application Server V6.1 plug-ins
GSKIT 7 is used for all web server plug-ins
WebSphere Application Server V7.0 plug-ins
GSKIT 7 is used for all web server plug-ins
WebSphere Application Server V8.0 plug-ins
GSKIT 8 is used for all web server plug-ins
The GSKIT library required by WebSphere Application Server plug-in must be installed during WebSphere Application Server installation. If the GSKIT library required by WebSphere Application Server plug-in is missing on the Web server, download and install IBM HTTP Server (IBM HTTP Server), which includes the GSKIT library.
Note: GSKIT7 is installed with IBM HTTP Server V6.0, V6.1, and V7.0 releases. GSKIT8 is installed with IBM HTTP Server V8.0
For the IBM HTTP Server, the web server plug-in is supported on the following versions:
- Plug-in 6.0 supported on IBM HTTP Server 6.0
- Plug-in 6.1 supported on IBM HTTP Server 6.0.2, 6.1
- Plug-in 7.0 supported on IBM HTTP Server 6.1, 7.0
- Plug-in 8.0 supported on IBM HTTP Server 8.0
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